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Acta Crystallogr C. 2006 Dec;62(Pt 12):i100-2. Epub 2006 Nov 10.

A disordered cerium(IV) phosphate with a tunnel structure, K4CeZr(PO4)4.

Author information

1
Department of Inorganic Chemistry, Taras Shevchenko National University, 64 Volodymyrska Str., 01033 Kyiv, Ukraine. ogorod@bigmir.net

Abstract

Tetrapotassium cerium(IV) zirconium tetrakis(monophosphate) crystallizes in the tetragonal system (space group I4(1)/amd). A complex disorder in K4CeZr(PO4)4 involves the mixing of Ce and Zr atoms on a single site with -4m2 symmetry and the splitting of P- and O-atom positions, equivalent to a rotation of the phosphate groups, to yield eight- and sixfold coordination environments around Ce and Zr, respectively. The K atoms are located in tunnels running parallel to the a and b axes.

PMID:
17148882
DOI:
10.1107/S0108270106044519

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